Vise



Patented Aug. 16, 1938 UNITED STATES VISE- Thorvald Petersen,

Erie, Pa., assignor to Reed Manufacturing Company, Erie, Pa., acorporation of Pennsylvania Application January 14, 1936, Serial No.59,051

1 Claim. The present invention is designed to improve Vises, andparticularly with relation to the slack which in Vises as commonly madevery materially adds to the eifort of the workman in the operation ofthe vise. In general the ordinary bench vise as now commonly made isprovided with a movable jaw, which is slidingly mounted in the bodycarrying the fixed jaw. A nut is mounted in the body in position toreceive the operating screw. In assembling the nut it is connected withthe body by sliding the connecting portion of the nut into an under-cutgroove against an abutment which receives the working thrust of thevise. It has been common to secure the nut against a backward movementby a pin or insert driven into the body with an initial con- This is anunsatisfactory arrangement, allowing, in some instances, initial play inthe anchoring of the nut, and in most J) instances permitting play afterthe vise has been in use for a period of time. With the presentinvention this tendency is obviated, and means are provided for takingup or preventing any play initially, or which may arise from continueduse of the vise.

Features and details of the invention will appear further in thespecification and claim.

A preferred embodiment of the invention is illustrated in theaccompanying drawing as follows:

Fig. 1 shows a side elevation of the vise, partly in section to bettershow construction.

Fig. 2 shows a rear view of the guide portion of the vise.

Fig. 3 shows a section on the line 33 in Fig. 1.

l marks the base of the vise; 2 the body of the vise; 3 the fixed jaw; 4the movable jaw; 5 the operating screw; 6 the head of the screw, and 1the operating handle for the vise. These parts are or may be of usualconstruction.

The movable jaw is provided with a bar 8 which slides in the guideopening 9 in the body. The bar has a cavity 10 which is provided with aslot it along the bottom of the bar. A nut I2 is carried on a post l3,the post extending through the slot H so as to position the nut I2 inthe 5 cavity it] and in position to receive the screw 5. The base of thepost I3 has a dove-tail shaped flange M which is arranged in a dove-tailgroove in the bottom of the guide slot 2|. The front end of the post i3engages an abutment I6 which 10 takes the working or closing thrust onthe nut.

In order to prevent any play of the nut with relation to the abutment, apin H is inserted into an opening IS in the body, the pin extending upinto the opening in the body below the bar. A 15 screw i9 is screwedthrough the pin against the rear of the post and thus the post isdefinitely clamped between the abutment and this screw. Should thecontinued use of the vise create play in the mounting of the nut, thescrew l9 may be adjusted to renew the clamping action. The pin I1 ispreferably provided with a slot 20. The threads of the opening in thepin are slightly offset at the opposite sides of the slot either byspringing the side walls as the threads are cut or by springing the sidewalls after the threads are cut. This acts to lock the screw inadjustment.

What I claim as new is:

In a vise, the combination of a body carrying a fixed jaw; a movablemember including a movable jaw; a screw operating the movable jaw;

a nut for the screw; a sliding connection between the nut and the body,terminating in a thrust abutment receiving the thrust exerted on the nutwith the closing of the vise; a pin inserted in the body back of thenut; and a screw extending through the pin, and clamping the nut on theabutment, said pin having a cross-slot with the threads at the oppositesides of the slot off-set.

THORVALD PETERSEN.

